Line-marking machine



N. w. HAIQSEY.

LINE MARKING MACHINE.

APPLICATION FILED AUG-I6, I916.

1,326,726. Patented 'Dec. 30,1919.

- UNITED STATES PATENT OFFICE.

NORMAN 'W. HA LSEY, OF NEW YORK, N. Y., ASSIGNOR TO A. G. SPALDING 8; BROS., OF NEW YORK, N. Y., A CORPORATION OF NEW J EBSEY. I

LINE-MARKING MACHINE.

Specification of Letters Patent. I Patented Dec. 30, 19 19.

- Application filed August 16, 1916. Serial No. 115,234.

To all whom it may concern:

Be it known that I, NORMAN W. HALSEY, a citizen of the United States, and resident of New York, county and State of New York, have invented certain new and useful Improvements in Line-Marking Machines, of which the following'is a specification.

This invention relates to machines for making ground lines for tennis courts, ball fields, etc. It is the object of the invention to provide a simple machine by means of which lines of the desired width and promi nence may be colweniently and expeditiously made.

One form of the invention is illustrated in the accompanying drawings, in which,

Figure 1 is a plan view;

Fig. 2 is a side elevation with certain parts broken away;

Fig. 3 is an enlarged longitudinal section through the spraying nozzle; and

Fig. 4-. is a section on the line 1-4 of Fig. 3.

Referring to the drawings, 10 indicates a truck frame or platform which is supported at one end by means of a pair of wheels 11 and 12 and at the opposite end by a single wheel 13, preferably arranged in a plane substantially midway between the planes of thewheels 11 and 12. The truck platform 10 carries an upright tank 14: having an opening in its upper end in which there is screwed or otherwise secured a flange 15 of the. air pump 16. The pump 16 extends into the tank 14 and may be of any suitable type and in the drawings is shown as being provided with a handle 17 by means of which the pump piston 18 may be reciprocated to apply pressure to the surface of the liquid marking material contained in the tank 14. The opening in the top of the tank 14:, which is closed by the flange 15, also serves as a filling opening through which the marking material may be poured into the tank. A discharge pipe 19 communicates with the lower part of the tank 14- and preferably extends down into the tank from the top, as shown in Fig. 2. This pipe extends downwardly at the rear of the truck and at its lower endcarries a nozzle 20 means of which the marking fluid is sprayed on to the ground. The nozzle 20 may he of any suitable type but I prefer to use. the form illustrated in Figs. 3 and 4, which has a small central opening 21 in the cap 22 which closes the lower end of the nozzle. ()n the interior of the. nozzle there is a disk 23 provided with. a series of inclined open ings 24 which are adapted to give the marking fluid a centrifugal movement in the chamber between the disk and the cap 22 so that when the fluid escapes through the opening 21 it will have a tendency to spray out in the form of a mist. A screen 25 may be arranged in the nozzle above the disk 24: for the purpose of preventing any large particles from reaching the openings 21 and 24: and clogging them.

Arranged in the pipe 19'is a regulating valve 27 by means of which. the flow through the nozzle may be controlled. A stop valve be supported by a suitable bracing member 28 which projects rearwardly from the plat: form 10 and I prefer to have the nozzle 20 arranged directly over thetrack made by the wheel 13.

In the operation of the machine it is moved in the direction of the arrow in Fig. 2 and the marking fluid is forced from the tank 14-. through the nozzle 20 by pressure supplied by the pump 16. The fluid sprayed from the nozzle 20 will be deposited upon the ground directly beneath the nozzle and the speed with which the truck is moved may be regulated to produce a mark of the desired prominence. The width of the mark may be adjusted by means of the valve 27.

front of the truck platform 10 and inclined upwardly toward the rear. The handle may 2 in any suitable manner, as by means of the upright braces 30,

Having described the invention what is claimed is:

In an apparatus of the class described, the

be supported in the position shown in Fig.

combination of a truck having a handle for rolling the same, a tank carried by said truck having a filling opening at the top, a pump having means to close said opening and adapted to apply pressure tothe surface of a liquid in the tank, a discharge pip extending from the tank to a point adjacent the handle and ending close to the ground, and a valve in said pipe adjacent the handle. In testimony whereof I aifix my signature. 10

NORMAN W. HALSEY.' Witnesses:

JOHN J BRODY, NELLIE L. Cnnnmms. 

